Doha, Dec 4 (Xinhua) Indonesian men's single bowler Ryan Leonard Lalisang Monday won the first gold medal for his country in the 15th Asian Games here, after his fellow bowler Putty Insavilla Armein bagged a silver medal from women's single.

The 26-year-old Ryan top the points tally with 1,442, or 23 points more than silver medallist Choi Bok Eum of South Korea.

Mahmood Ahmed Al Attar from the United Arab Emirates won bronze at 1,401 points.

Now ranked fourth in the world, Ryan earlier expressed confidence of victory when he was watching his fellow countrywomen in the Sunday's final.

"Gold medal is a realistic target and I'm convinced of it," he was quoted by the Indonesian Antara news agency as saying.